Average Damage Question

Ive been playing D3 for some time now mostly for fun and with friends, and only recently became more interested in the math and numbers.

Average damge always to me ment that if on a ring or amulet there is a "16-24 Damage" then the average damage is 20, but i have noticed on some items that this does not seem to be true.

I have take 2 Screens of a Tal Rasha amulets on the AH that seems odd to me.

The only stat searched for is Average Damage and i entered the min as 50.
the top 2 came up as 51 but when you look at the items it doesnt seem right.
The game seems to think, and calculates the "damage increase" according to 51 but according to me its
34?

Avg dmg is calculated (min+max)/2 so the second amulet with 33-69 is 51 like you said (33+69 =102; 102 /2 =51)
The one with 19-49 has actually an extra affix in there (max dmg). You can't see it separetly, because it's counted in the 49. When this happens, the AH seems to calculate incorrectly.

edit: or maybe the calculation is right, but its displayed incorrectly on the item >_
just read what Bagstone linked, good info there

A bit off-topic but to add something, since you said you are interested in numbers etc, the way to spot on the left neck that there's a 'hidden affix' or a double roll on some items can be simple most of the time.

On legendaries its very easy because you know exactly how many affixes is it supposed to have. You can do that by comparing to same legendaries or looking it up on the internet. For example Tal rasha amulet will always have int+ int/vit+ crit dmg + elemental dmg. + 2 rolls.
On the second one in your picture you can see the 2 stats being avg dmg and globe/potion bonus. On the first one you only see avg dmg, which means there must be either +min dmg, +max dmg or extra vit. Since the Vit is in the normal ranges of the item, it must be something else. Its most likely max dmg.

Its harder to spot on rare items since they can have 4,5 or 6 affixes, but possible if you know the ranges and max values of affixes.
For example 201 or more Vit on a chest piece has to be a double roll (coupled with either str/dex/int), because Vit alone can roll max 200.
Sometimes it can be tricky though, when the values are in lower ranges.

The ingame damage calculator and for example the d3rawr calculator values average damage pretty closely to your main stat. The interesting thing is that depending on your weapon all your average damage is going to be multiplied alot.

If you're using a Skorn, Chantodos Will or any black damage weapon in general its going to have a %damage value usually between 46-50%. This stat automatically makes average damage 50% stronger than Strength, Dex or Int for any class.

The ingame damage calculator and for example the d3rawr calculator values average damage pretty closely to your main stat. The interesting thing is that depending on your weapon all your average damage is going to be multiplied alot.

If you're using a Skorn, Chantodos Will or any black damage weapon in general its going to have a %damage value usually between 46-50%. This stat automatically makes average damage 50% stronger than Strength, Dex or Int for any class.

This should make the choice between an Emerald or Ruby pretty simple.

Most of that sounds wrong. Average damage on gear is not improved by the damage % on weapons. The damage% on weapons isn't what makes average damage better than primary stats, it's a combination of all your stats, including your actual weapon damage. If you have two identical weapons, but one has 50% weapon damage while the other has 0, but they both have the same damage and dps, the effective dps of gaining 1 average damage would be the same for both.

Also, having a black weapon has no impact on how useful average damage is. Again if you have 2 weapons with the same total damage and same dps, average damage will add just as much dps regardless of which weapon you use.

Ruby damage is affected by that bonus damage because it applies it directly to your weapon.

Even with 50% bonus damage on your weapon that doesn't make the choice of ruby or emerald simple at all. I have 2 gear sets for 2 different builds. For one, emerald is better, for the other, ruby is marginally better if I neglect procs on my skills, otherwise emerald is better. Both builds have damage% on weapon.